EP2294958A2 - Dispenser with collapsible dispensing tube - Google Patents

Dispenser with collapsible dispensing tube Download PDF

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Publication number
EP2294958A2
EP2294958A2 EP09170175A EP09170175A EP2294958A2 EP 2294958 A2 EP2294958 A2 EP 2294958A2 EP 09170175 A EP09170175 A EP 09170175A EP 09170175 A EP09170175 A EP 09170175A EP 2294958 A2 EP2294958 A2 EP 2294958A2
Authority
EP
European Patent Office
Prior art keywords
push bar
dispensing tube
dispenser
housing
tube
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP09170175A
Other languages
German (de)
English (en)
French (fr)
Inventor
Nick E. Ciavarella
Scott T. Proper
Brent Huxtable
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Go-Jo Industries Inc
Original Assignee
Go-Jo Industries Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Go-Jo Industries Inc filed Critical Go-Jo Industries Inc
Publication of EP2294958A2 publication Critical patent/EP2294958A2/en
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
    • A47K5/00—Holders or dispensers for soap, toothpaste, or the like
    • A47K5/06—Dispensers for soap
    • A47K5/12—Dispensers for soap for liquid or pasty soap
    • A47K5/1202—Dispensers for soap for liquid or pasty soap dispensing dosed volume
    • A47K5/1204—Dispensers for soap for liquid or pasty soap dispensing dosed volume by means of a rigid dispensing chamber and pistons
    • A47K5/1207—Dispensing from the bottom of the dispenser with a vertical piston
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
    • A47K5/00—Holders or dispensers for soap, toothpaste, or the like
    • A47K5/06—Dispensers for soap
    • A47K5/12—Dispensers for soap for liquid or pasty soap
    • A47K5/1202—Dispensers for soap for liquid or pasty soap dispensing dosed volume
    • A47K5/1204—Dispensers for soap for liquid or pasty soap dispensing dosed volume by means of a rigid dispensing chamber and pistons
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
    • A47K5/00—Holders or dispensers for soap, toothpaste, or the like
    • A47K5/06—Dispensers for soap
    • A47K5/12—Dispensers for soap for liquid or pasty soap
    • A47K5/1202—Dispensers for soap for liquid or pasty soap dispensing dosed volume
    • A47K5/1204—Dispensers for soap for liquid or pasty soap dispensing dosed volume by means of a rigid dispensing chamber and pistons
    • A47K5/1205—Dispensing from the top of the dispenser with a vertical piston
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47K—SANITARY EQUIPMENT NOT OTHERWISE PROVIDED FOR; TOILET ACCESSORIES
    • A47K5/00—Holders or dispensers for soap, toothpaste, or the like
    • A47K5/06—Dispensers for soap
    • A47K5/12—Dispensers for soap for liquid or pasty soap
    • A47K5/1211—Dispensers for soap for liquid or pasty soap using pressure on soap, e.g. with piston
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D83/00—Containers or packages with special means for dispensing contents
    • B65D83/14—Containers or packages with special means for dispensing contents for delivery of liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant for a product delivered by a propellant
    • B65D83/75—Aerosol containers not provided for in groups B65D83/16 - B65D83/74
    • B65D83/753—Aerosol containers not provided for in groups B65D83/16 - B65D83/74 characterised by details or accessories associated with outlets

Definitions

  • the invention herein resides in the art of liquid dispensers. More particularly, the invention relates to a dispenser having a push bar that is pushed to dispense fluid to a user's hand.
  • liquids such as soaps, sanitizers, cleansers, disinfectants, and the like
  • the pump mechanism employed with such dispensers has typically been a liquid pump, simply emitting a predetermined quantity of the liquid upon movement of an actuator.
  • the standard liquid pump has given way to a foam generating pump, which necessarily requires means for combining the air and liquid in such a manner as to generate the desired foam.
  • the concepts taught herein are applicable to both liquid and foam dispensers.
  • dispensers providing a push bar that is pushed from a rest position to an actuated position to actuate the pump mechanism and dispense foam to the operator's hand.
  • the dispensing tube extending from the pump mechanism is stationary and provides an outlet that is distanced from the push bar in its rest position.
  • the operator cups his fingers under the outlet of the dispensing tube while pushing the push bar toward the outlet with the base of his palm. This dispenses the liquid through the outlet and onto his hand.
  • This general structure presents some problems for those with small hands, as they may not be large enough to both engage the push bar and register with the outlet.
  • an initial dose of liquid may miss their hand and be dispensed to the floor or their clothing, that is, until their hand aligns under the outlet.
  • the dose of liquid is dispensed in a line across their hand because their hand moves relative to the outlet as the push bar is moved.
  • some dispensers are structured such that the dispensing tube outlet is associated with the push bar to move with the push bar. Examples of such dispensers can be seen in US Patent Nos. 5,556,005 , 5,797,517 , 5,992,698 , 6,648,179 , and 7,198,177 .
  • the present invention improves on the general concept of associating the dispensing tube outlet to move with the push bar.
  • a dispenser in accordance with this invention includes a housing and a push bar movable between a rest position and an actuated position.
  • a container is retained in the housing and holds a liquid.
  • a pump is associated with the liquid in the container, and is actuated to dispense a dose of the liquid when the push bar is moved from its rest position to its actuated position.
  • a dispensing tube includes an inlet associated with the pump, an outlet, and a bellows portion between the inlet and the outlet. The dispensing tube is secured to the push bar such that, upon moving the push bar from its rest position to its actuated position, the bellows portion is collapsed from an expanded volume to a compressed volume and the outlet moves with the push bar.
  • the concepts taught herein can be practiced to improve those dispensers that have a pump actuated by a pivoting push bar to dispense a dose of solution through an outlet in a dispensing tube.
  • the improvement includes forming at least a portion of the dispensing tube as a bellows and securing the dispensing tube to the push bar such that, upon actuating the push bar, the bellows is collapsed from an expanded volume to a compressed volume and the outlet moves with said push bar.
  • a dispenser in accordance with other embodiments of this invention, includes a housing and a push bar, which is movable between a rest position and an actuated position.
  • a container is retained in the housing and holds a liquid.
  • a pump is associated with the liquid in the container, and is actuated to dispense a dose of the liquid when the push bar is moved from its rest position to its actuated position.
  • a dispensing tube includes an inlet associated with the pump, an outlet, and a bellows portion between the inlet and the outlet. The dispensing tube is secured to the push bar proximate the outlet of the dispensing tube such that, upon moving the push bar from its rest position to its actuated position, the outlet moves as well.
  • the dispenser further includes a first pinch member that is associated with the housing and a second pinch member that is associated with the push bar.
  • a first pinch member that is associated with the housing
  • a second pinch member that is associated with the push bar.
  • Fig. 1 is a front elevational view of the dispenser of this invention
  • Fig. 2 is a stepped cross sectional view of the dispenser of Fig 1 , taken along the line 2 - 2;
  • Fig. 3 is a stepped cross sectional similar to that in Fig. 2 , but shown at an actuated position wherein the pump has been actuated by the fins of the push bar;
  • Fig. 4 is a perspective view showing the structure of an embodiment of a push bar in accordance with this invention.
  • Fig. 5 is a stepped cross sectional view similar to that in Fig. 2 , taken along the line 2 - 2 of Fig. 1 , but showing an alternative embodiment of the invention wherein structures are provided to pinch the dispensing tube to prevent dripping;
  • Fig. 6 is a stepped cross sectional view similar to that in Fig. 5 , showing the dispenser in an actuated position, similar to that as in Fig. 3 , but shown with the anti-drip features of Fig. 5 .
  • the dispenser 10 includes a housing 12 that receives a container 14 holding liquid S for dispensing.
  • a pump 16 is associated with the liquid S in the container 14, and is actuated to dispense a dose of the liquid S through a dispensing tube 18 associated with the pump 16.
  • the pump 16 is actuated by movement of a push bar 20, which is typically associated with the housing 12, though this invention is not limited to or by that particular structure.
  • the pump 16 is a reciprocating piston pump for dispensing either the liquid S alone or a mixture of the liquid S and air to create foam.
  • piston pumps are well known, and the present invention is not limited to such a particular pump, it being sufficient for purposes of this invention that the pump be of a type that is actuated by movement of a push bar.
  • a dome pump or bellows pump wherein a collapsible dome or bellows is compressed by movement of a push bar to dispense liquid would also be suitable.
  • the push bar 20 is pivotally secured to the housing 12, as at hinge 22 ( Fig. 4 ), to be movable between a rest position, as seen in Fig. 2 , and an actuated position, as seen in Fig.
  • one or more fins 24 extend from the push bar 20 to engage the pump 16 or an auxiliary structure that engages the pump 16, and these fins 24 pivot with the push bar 20, such that they actuate the pump 16 (either directly or through the auxiliary structure) as push bar 20 is moved in the direction of arrow A, from the rest position of Fig. 2 , to the actuated position of Fig. 3 .
  • the push bar 20 includes a dispensing tube adaptor 26 that is provided to selectively receive the dispensing tube 18 associated with the pump 16.
  • the dispensing tube adaptor 26 is used to secure the dispensing tube 18 to the push bar 20 such that the outlet 28 of the dispensing tube 18 moves with the push bar 20.
  • a concave wall 30 in the push bar 20 extends in the direction of movement of the push bar 20 and provides a mount 32 for the distal end 34 of the dispensing tube 18.
  • This mount 32 can be any suitable selective securing structure, though it is shown here as a notch 36 that receives the distal end 34 through a friction fit.
  • the dispensing tube 18 is made from a resilient material that is forced into place at mount 32 to be held thereby. This is especially advantageous when the dispensing tube 18 is provided as part of a refill unit made up of the container, the pump, auxiliary structures (if employed), and the dispensing tube, because the dispensing tube is easily mounted to the push bar once the refill unit is mounted in the housing.
  • the dispensing tube 18 extends from an inlet 38 associated with the pump 16 to an outlet 28 associated with the push bar 20. Between the inlet 38 and the outlet 28, the dispensing tube 18 includes a bellows portion 40. In the embodiment shown, the entire dispensing tube 18 is formed of a bellows portion 40, but it should be appreciated that the inventive concepts herein would still be achieved by providing only a portion of the length of dispensing tube 18 as a bellows portion 40. Preferably, if only a portion of the dispensing tube 18 is to be formed as a bellows, the bellows portion would be closer to outlet 28.
  • the push bar 20 is biased to its rest position by either the reciprocating mechanisms of the pump 16 or by a separate biasing mechanism. This is generally known in the art. Upon release of the push bar 20, it returns to its rest position, and this causes the bellows portion 40 of the dispensing tube 18 to expand to its expanded volume. As the bellows portion 40 expands, a vacuum is created, and liquid (or foam in the case of a foam pump) proximate the outlet 28 is sucked further back into the dispensing tube 18, thus minimizing or eliminating the potential for liquid to drip from the outlet 28.
  • the bellows portion 40 is corrugated, as at ridges 42 and valleys 44, and is made of a material that provides the bellows portion 40 with the ability to reversibly collapse and extend between the compressed volume and the expanded volume shown.
  • ridges 42 and valleys 44 are advantageous in that they provide channels 46 for holding liquid away from outlet 28 to prevent dripping. They also collapse toward one another to decrease the volume of the bellows portion 40 as the dispenser 10 is actuated.
  • the distance between the inlet 38 and the distal end 34 of the dispensing tube 18 is greater in the unactuated, rest position than in the actuated position, and, as a result, at least a portion of the corrugated length of the dispensing tube 18 collapses onto itself as the push bar 20 is moved from the rest position to the actuated position. Similarly, as the push bar 20 moves from the actuated position to the rest position these collapsed portions expand.
  • Figs. 5 and 6 structures are provided to pinch the dispensing tube and prevent product from dripping out of the dispensing tube when the dispenser is in the rest position.
  • the rest position is shown in Fig. 5
  • an actuated position is shown in Fig. 6 .
  • the dispensing tube 118 extends through an aperture 150 in a push bar plate 152 extending from a pivotal connection 153 to the push bar 120 to a pivotal connection 154 to a track 155 having opposed track rails 156 and 157, which are integral with or otherwise securely associated with the housing 112.
  • a similar rail system complimenting rails 156 and 157 extends from the near wall to complet the track 155.
  • the push bar plate 152 fits between these sets of rails so as to move vertically therebetween, as can be seen in comparison of Figs 5 and 6 .
  • the push bar plate 152 and aperture 150 serve as a first pinch member for pinching the dispensing tube 118 closed when the push bar 120 is the rest position. More particularly, the dispensing tube 118 also extends through an aperture 158 in a first housing tube plate 159, and through an aperture 160 in a second housing tube plate 161.
  • the first housing tube plate 159 and the second housing tube plate 161 are integral with or otherwise securely associated with the housing 112. Here they are shown extending from the back plate 148 that forms a portion of the dispenser housing 112.
  • the push bar plate 152 is positioned between the first housing tube plate 159 and the second housing tube plate 161, and all of these elements work together to pinch the tube 118.
  • the first and second housing tube plates 159, 161 and their respective apertures 158, 160 thus serve as a second pinch member. The functioning of these first and second pinch members will be described more particularly below.
  • the dispensing tube 118 extends from the pump 124, as already described with respect to the dispensing tube 18 and the pump 16.
  • the dispensing tube 118 extends through the first and second pinch members, and its distal end 134 is secured to the push bar 120 at a mount 132 substantially as already described with respect to the mount 32 in the previous embodiment.
  • the first housing tube plate 159 lies above the push bar plate 152, while the second housing tube plate 161 lies below the push bar plate 152.
  • the dispensing tube 118 extends first through aperture 158 in the first housing tube plate 159, then extends through the aperture 150 in the push bar plate 152, and then finally extends through the aperture 160 in the second housing tube plate 161 to then be secured at the mount 132.
  • the dispensing tube 118 is forced to move relative to the first and second housing tube plates 159, 161 when the push bar 120 is manipulated to dispense product as already described with respect to the embodiment of Figs. 1-4 and as seen in a comparison of Figs. 5 and 6 .
  • the push bar 120 is in the rest position, distanced away from the back plate 148, and, thus, the dispensing tube 118 is pulled to the left by contact with the right-hand side of the apertures 150 in the push bar plate 152.
  • the push bar plate 152 and its aperture 150 are sized such that, when the push bar 120 is in the rest position, the apertures 150, 158 and 160 are sufficiently out of alignment such that the vertical path through the apertures 158, 150 and 160 is sufficiently serpentine to ensure that the dispensing tube 118 fed therethrough is pinched closed. With the dispensing tube 118 pinched between these first and second pinch members, the contents within the dispensing tube 118 and above the location where the tube is pinched cannot drip out of the dispensing tube 118. With reference to Fig.
  • the push bar tube plate 152 and aperture 150 are also sized such that, in the actuated position, the apertures 150, 158 and 160 are sufficiently aligned such that the vertical path through apertures 158, 150 and 160 is straight enough to ensure that the dispensing tube 118 is not pinched closed, and, instead, is open to fluid flow, thus permitting product to be dispensed when the push bar 120 is moved from the rest position to the actuated position.
  • the dispenser can be prevented from dripping product when in the rest position. This is particularly beneficial in the present dispenser inasmuch as it is intended to suck residual product back into the dispensing tube 118 by means of the bellows shape provided to the dispensing tube.
  • the residual product particularly if it is a foam product, will tend to break down in the dispensing tube and, absent a closing of the dispensing tube, would tend to drip.
  • first housing tube plate 159 is shown as positioned above the push bar plate 152 and the second housing tube plate 161 is shown positioned below the push bar plate 152, a single housing tube plate can be successfully implemented if sized properly such that, in a rest position, a sufficiently narrow or serpentine dispensing tube passageway is formed through apertures provided in the single housing tube plate and the push bar plate.

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Reciprocating Pumps (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Devices For Dispensing Beverages (AREA)
EP09170175A 2009-09-10 2009-09-14 Dispenser with collapsible dispensing tube Withdrawn EP2294958A2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US12/556,966 US8387834B2 (en) 2009-09-10 2009-09-10 Dispenser with collapsible dispensing tube

Publications (1)

Publication Number Publication Date
EP2294958A2 true EP2294958A2 (en) 2011-03-16

Family

ID=43303270

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09170175A Withdrawn EP2294958A2 (en) 2009-09-10 2009-09-14 Dispenser with collapsible dispensing tube

Country Status (10)

Country Link
US (1) US8387834B2 (zh)
EP (1) EP2294958A2 (zh)
JP (1) JP2011057280A (zh)
KR (1) KR20110027518A (zh)
CN (1) CN102018466A (zh)
AU (1) AU2009213092A1 (zh)
BR (1) BRPI0903428A2 (zh)
CA (1) CA2678633A1 (zh)
MY (1) MY180658A (zh)
TW (1) TW201108982A (zh)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013009426A3 (en) * 2011-07-12 2013-03-21 Gojo Industries, Inc. Shut-off system for a dispenser
US10016097B2 (en) 2015-04-07 2018-07-10 Vi-Jon, Inc. Dispenser assembly
WO2022078597A1 (en) * 2020-10-14 2022-04-21 Essity Hygiene And Health Aktiebolag An adaptor assembly for a fluid dispensing system

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US10154923B2 (en) 2010-07-15 2018-12-18 Eyenovia, Inc. Drop generating device
WO2012159028A1 (en) * 2011-05-18 2012-11-22 Nigel Kelly Fluid dispenser
TWI473589B (zh) * 2011-08-30 2015-02-21 Harvest Cosmetic Industry Co Ltd 給液器
US8550131B1 (en) 2013-01-02 2013-10-08 Liquid Squeeze, LLC Liquid dispensing device, system and method
WO2015108827A1 (en) * 2014-01-15 2015-07-23 Gojo Industries, Inc. Pumps with angled outlets, refill units and dispensers having angled outlets
EP3099418A1 (en) * 2014-01-27 2016-12-07 Gojo Industries, Inc. Dispenser and refill unit having collapsible outlet tube
US20170367882A1 (en) * 2014-11-19 2017-12-28 Nigel Kelly Dosage Delivery in Miniature Dispensing Pumps
MX2018003522A (es) * 2015-09-25 2018-09-11 Sca Hygiene Prod Ab Bomba con un muelle de polimero.
US10667655B2 (en) 2017-02-22 2020-06-02 Gojo Industries, Inc. Dispensers, refill units and pumps having vacuum actuated anti-drip mechanisms
CN110382122B (zh) 2017-03-29 2022-01-04 易希提卫生与保健公司 带有束缚阀的塑性体弹簧
SG11201911895XA (en) 2017-06-10 2020-01-30 Eyenovia Inc Methods and devices for handling a fluid and delivering the fluid to the eye
US10786121B2 (en) 2018-03-28 2020-09-29 Gojo Industries, Inc. Foam pumps, refill units and dispensers with differential bore suck-back mechanism
CA3096117A1 (en) 2018-04-25 2019-10-31 Gojo Industries, Inc. Foam-at-a-distance systems and anti-drip mechanisms for such systems

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US5797517A (en) 1996-10-25 1998-08-25 Primary Delivery Systems, Inc. Liquid pump dispenser with tri-purpose nozzle
US5992698A (en) 1995-08-07 1999-11-30 Ecolab Inc. Liquid soap dispenser
US6648179B2 (en) 2000-12-19 2003-11-18 Kimberly-Clark Worldwide, Inc. Self-contained viscous liquid dispenser
US7198177B2 (en) 2001-11-12 2007-04-03 Bentfield Europe B.V. Dispenser for dispensing a fluid, housing for such a dispenser, storage holder configured for placement therein and arrangement for the dosed pumping of a fluid from a fluid reservoir

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Publication number Priority date Publication date Assignee Title
US5556005A (en) 1995-01-09 1996-09-17 Sprintvest Corporation Nv Collapsible soap dispenser
US5992698A (en) 1995-08-07 1999-11-30 Ecolab Inc. Liquid soap dispenser
US5797517A (en) 1996-10-25 1998-08-25 Primary Delivery Systems, Inc. Liquid pump dispenser with tri-purpose nozzle
US6648179B2 (en) 2000-12-19 2003-11-18 Kimberly-Clark Worldwide, Inc. Self-contained viscous liquid dispenser
US7198177B2 (en) 2001-11-12 2007-04-03 Bentfield Europe B.V. Dispenser for dispensing a fluid, housing for such a dispenser, storage holder configured for placement therein and arrangement for the dosed pumping of a fluid from a fluid reservoir

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013009426A3 (en) * 2011-07-12 2013-03-21 Gojo Industries, Inc. Shut-off system for a dispenser
US8991648B2 (en) 2011-07-12 2015-03-31 Gojo Industries, Inc. Shut-off system for a dispenser
US10016097B2 (en) 2015-04-07 2018-07-10 Vi-Jon, Inc. Dispenser assembly
US10376106B2 (en) 2015-04-07 2019-08-13 Vi-Jon, Inc. Dispenser assembly
WO2022078597A1 (en) * 2020-10-14 2022-04-21 Essity Hygiene And Health Aktiebolag An adaptor assembly for a fluid dispensing system
CN116322446A (zh) * 2020-10-14 2023-06-23 易希提卫生与保健公司 用于流体分配系统的适配器组件
US11805950B2 (en) 2020-10-14 2023-11-07 Essity Hygiene And Health Aktiebolag Adaptor assembly for a fluid dispensing system

Also Published As

Publication number Publication date
US20110056990A1 (en) 2011-03-10
CA2678633A1 (en) 2011-03-10
BRPI0903428A2 (pt) 2011-05-10
JP2011057280A (ja) 2011-03-24
AU2009213092A1 (en) 2011-03-24
US8387834B2 (en) 2013-03-05
TW201108982A (en) 2011-03-16
MY180658A (en) 2020-12-04
CN102018466A (zh) 2011-04-20
KR20110027518A (ko) 2011-03-16

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